[18.0-fr1] Add the steps to reboot the computes after update. #2702
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This sequence implements reboot of the compute nodes after the update. By default it's not run and `cifmw_update_reboot_test` must be set to true to activate it. We have one instance created. If the hypervisor being rebooted has the instance that instance will be live-migrated to another hypervisor before the reboot and migrated back to that original hypervisor after the reboot. Some basic sanity checks are performed after the reboot and before the migration back to ensure that the necessary services are up and running. During the reboot we start two scripts. One monitors and log the reboot of the hypervisors. The other log where the instance is currently running. The log files can be found in `~/ci-framework-data/tests/update/` in `monitor_servers.log` and `monitor_vm_placement.log` respectively. A note about node evacuation. We are still using node evaction from the nova cli. This command has not been ported to the openstack cli. There's a discussion about it [on launchpad](https://bugs.launchpad.net/python-openstackclient/+bug/2055552). Also, we do the evacuation only if there are more than one hypervisor available. When only one compute is available we stop and and after reboot, we just restart the instance. The official documentation mention only the live-migration path, but as we also use the live-migration in the test sequence that part is covered. We still expect customer to use the nova cli as it's way more user friendly and is still currently working. Closes: https://issues.redhat.com/browse/OSPRH-8937
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Thanks for the PR! ❤️ |
ciecierski
approved these changes
Feb 4, 2025
jistr
approved these changes
Feb 4, 2025
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This is an automated cherry-pick of #2587
/assign sathlan